Double Displacement Reaction | Hindi | Chemistry

Double Displacement Reaction
These are types of reactions, where there is an exchange of ions between the reactants. Let’s understand this using the following example.
When equal amounts of sodium sulfate and barium chloride solutions are mixed, a white, insoluble substance is formed. This substance is called a ‘precipitate’. Therefore, this is also known as a precipitation reaction. Here, sodium sulfate and barium chloride exchange SO42- and Cl- ions to give barium sulfate which forms the precipitate and sodium chloride that stays in solution. Here, two ions have been displaced - SO42- and Cl-, therefore, this is a double displacement reaction.
Na2SO4(aq) + BaCl2(aq) → BaSO4(s) + 2NaCl(aq)
(Sodium sulfate) (Barium chloride) (Barium sulfate) (Sodium chloride)
#doubledisplacementreaction #displacementreaction #reaction
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